FR2563902A1 - BREAKING LOAD - Google Patents
BREAKING LOAD Download PDFInfo
- Publication number
- FR2563902A1 FR2563902A1 FR8506657A FR8506657A FR2563902A1 FR 2563902 A1 FR2563902 A1 FR 2563902A1 FR 8506657 A FR8506657 A FR 8506657A FR 8506657 A FR8506657 A FR 8506657A FR 2563902 A1 FR2563902 A1 FR 2563902A1
- Authority
- FR
- France
- Prior art keywords
- charge
- priming
- breaking
- explosive
- initiation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000037452 priming Effects 0.000 claims abstract description 30
- 239000002360 explosive Substances 0.000 claims description 24
- 230000000977 initiatory effect Effects 0.000 claims description 8
- 238000004200 deflagration Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 3
- 238000004880 explosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/08—Blasting cartridges, i.e. case and explosive with cavities in the charge, e.g. hollow-charge blasting cartridges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C19/00—Details of fuzes
- F42C19/08—Primers; Detonators
- F42C19/09—Primers or detonators containing a hollow charge
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
DANS LE CAS D'UNE CHAINE DE CHARGES BRISANTES, IL S'AGIT D'ASSURER QUE LA CHARGE D'AMORCAGE D'UNE CHARGE BRISANTE AMORCERA EGALEMENT LA CHARGE D'AMORCAGE D'UNE CHARGE BRISANTE VOISINE, MEME S'IL EXISTE UN INTERVALLE ENTRE CES CHARGES D'AMORCAGE. CE BUT ESTATTEINT PAR LE FAIT QU'ON PLACE A UNE EXTREMITE OU AUX DEUX EXTREMITES DE LA CHARGE D'AMORCAGE 7 UN TRANSMETTEUR D'AMORCAGE 8 DONT LE SENS D'ACTION EST ORIENTE DANS LE PROLONGEMENT DU SENS LONGITUDINAL DE LA CHARGE D'AMORCAGE 7.IN THE CASE OF A CHAIN OF BREAKING LOADS, THIS IS TO ENSURE THAT THE INITIAL CHARGE OF A BREAKING LOAD WILL ALSO PRIME THE PRIMING LOAD OF A NEIGHBORING BREAKING LOAD, EVEN IF AN INTERVAL EXISTS BETWEEN THESE PRIMING CHARGES. THIS PURPOSE IS ACHIEVED BY PLACING AT ONE OR BOTH ENDS OF THE PRIMING LOAD 7 A PRIMING TRANSMITTER 8 WHOSE DIRECTION OF ACTION IS ORIENTED IN THE EXTENSION OF THE LONGITUDINAL DIRECTION OF THE PRIMING LOAD 7.
Description
Charge brisante L'invention concerne une charge brisante munie de surfacesThe invention relates to a breaking load provided with surfaces.
latérales planes, dans laquelle est disposée, au-dessus d'une charge explosive principale, une charge d'amorçage qui s'étend dans le sens longitudinal entre les surfaces latérales. Une telle charge brisante est décrite dans le modèle d'utilité allemand DE-U 81 18 005. Si on place l'une à côté de l'autre de telles charges brisantes pour former une chaîne, il peut arriver, si la surface sur laquelle elles sont posées n'est pas plane, que les plans des surfaces latérales des charges brisantes ne soient pas appliqués l'un contre l'autre. Entre les charges d'amorçage de charges brisantes voisines existent donc des intervalles. Il n'est donc pas assuré que l'amorçage se propage par dessus cet intervalle. Ceci lateral plane, in which is disposed, above a main explosive charge, a priming charge which extends in the longitudinal direction between the lateral surfaces. Such a breaking charge is described in the German utility model DE-U 81 18 005. If one places such breaking charges next to each other to form a chain, it can happen, if the surface on which they are placed is not flat, that the planes of the lateral surfaces of the breaking loads are not applied one against the other. Between the starting charges of neighboring breaking charges there therefore exist intervals. It is therefore not guaranteed that the priming propagates over this interval. This
est particulièrement défavorable lorsque la charge ex- is particularly unfavorable when the load ex-
plosive principale doit être amorcée t partir du haut. main plosive must be primed from the top.
Le but de l'invention est de proposer une charge brisante du type précité dont la structure est telle qu'elle assure l'amorçage de la charge brisante voisine The object of the invention is to propose a breaking load of the aforementioned type, the structure of which is such that it initiates the neighboring breaking load.
dans une chaîne de charges brisantes. in a chain of breaking charges.
Ce but est atteint conformément à l'invention avec une charge brisante du type précité, par le fait qu'on place à une extrémité ou aux deux extrémités de la charge d'amorçage un transmetteur d'amorçage dont le sens d'action est orienté dans le prolongement du sens longitudinal de la charge d'amorçage. Le transmetteur d'amorçage devient actif lors de l'allumage de la charge This object is achieved in accordance with the invention with a breaking load of the aforementioned type, by the fact that a priming transmitter whose direction of action is oriented is placed at one end or at both ends of the priming charge. in the extension of the longitudinal direction of the priming charge. The ignition transmitter becomes active when the load is switched on
d'amorçage et il transmet l'allumage à la charge d'amor- and it transmits the ignition to the priming charge.
çage d'une charge brisante voisine. De petits intervalles erection of a neighboring breaking load. Small intervals
entre les charges d'amorçage se trouvent ainsi enjambés. between the priming charges are thus spanned.
Si on prévoit des transmetteurs d'amorçage sur les deux surfaces latérales, il n'est pas nécessaire de veiller à unalianement correct des charges brisantes If priming transmitters are provided on both side surfaces, it is not necessary to ensure that the breaking loads are correctly aligned
lorsqu'on installe une chaîne de charges brisantes. when installing a chain of breaking charges.
Dans une réalisation préférée de l'invention, le transmetteur d'amorçage comporte une garniture métallique dimensionnée de telle sorte qu'elle forme un projectile lors de la déflagration de la charge d'amorçage. Lors de l'amorçage, ce projectile est alors propulsé en direction de la charge d'amorçage de la In a preferred embodiment of the invention, the ignition transmitter comprises a metal lining dimensioned so that it forms a projectile during the deflagration of the ignition charge. During priming, this projectile is then propelled towards the priming charge of the
charge brisante voisine et il amorce celle-ci. Le pro- neighboring breaking charge and it initiates it. The pro-
jectile franchit un intervalle éventuel entre les charges d'amorçage. Dans un développement de l'invention, la charge jectile crosses a possible interval between the priming charges. In a development of the invention, the charge
d'amorçage est constituée par un explosif dont la vi- initiation consists of an explosive, the vi-
tesse de déflagration est supérieure à celle de l'ex- deflagration size is greater than that of the former
plosif de la charge explosive principale. On obtient ainsi que chaque charge explosive soit amorcée par la charge d'amorçage qui lui est affectée et non qu'une main explosive charge plosive. We thus obtain that each explosive charge is initiated by the initiating charge which is assigned to it and not that a
charge explosive principale voisine déclenche l'amor- neighboring main explosive charge triggers ignition
çage. Autrement, l'effet d'un corps de guidage d'onde cage. Otherwise, the effect of a waveguiding body
de déflagration placé dans la charge explosive princi- of deflagration placed in the main explosive charge
pale serait perdu.pale would be lost.
D'autres réalisations avantageuses de l'inven- Other advantageous achievements of the invention
tion apparaitront dans la description suivante d'un tion will appear in the following description of a
exemple de réalisation représenté sur le dessin, sur lequel: la fig. 1 représente une charge brisante en coupe selon la ligne I-I de la fig. 2; la fig. 2 représente deux charges brisantes d'une chaîne de charges brisantes, en vue latérale; et la fig. 3 est une vue partielle agrandie d'une exemplary embodiment shown in the drawing, in which: FIG. 1 represents a breaking load in section along the line I-I of FIG. 2; fig. 2 shows two breaking charges of a chain of breaking charges, in side view; and fig. 3 is a partial enlarged view of a
charge brisante.breaking load.
Une charge brisante comporte un bottier 1 muni A breaking load comprises a shoemaker 1 provided
de deux surfaces latérales planes en vis-à-vis 2 et 3. of two flat side surfaces facing each other 2 and 3.
Dans le bottier 1 est logée une charge explosive prin- In shell 1 is housed a main explosive charge
cipale 4 qui est délimitée en bas par une garniture 5. cap 4 which is delimited at the bottom by a lining 5.
Dans la charge explosive principale 4 est incorporé un corps de guidage d'onde de déflagration 6. Au-dessus de ce corps de guidage 6 est disposée une charge d'amorçage 7. Celle-ci s'étend au milieu au-dessus du corps de guidage d'onde de déflagration 6 d'une surface latérale 2 à l'autre 3. Aux deux extrémités de la charge d'amorçage 7 sont prévus des transmetteurs d'amorçage 8. Chacun des transmetteurs d'amorçage 8 comporte, outre une partie explosif 9, une garniture métallique 10. Vue de l'extérieur, celle-ci est concave. Elle peut être, soit en forme de cylindre partiel, soit comporter un angle comme la garniture 5. On peut utiliser le même explosif pour la charge d'amorçage et pour la partie explosif 9. Pour la charge d'amorçage, on utilise In the main explosive charge 4 is incorporated a deflagration wave guiding body 6. Above this guiding body 6 is disposed a priming charge 7. This extends in the middle above the body deflagration waveguide 6 from one side surface 2 to the other 3. At the two ends of the priming load 7 are provided priming transmitters 8. Each of the priming transmitters 8 comprises, in addition to a explosive part 9, a metal lining 10. Viewed from the outside, it is concave. It can either be in the form of a partial cylinder or have an angle like the lining 5. The same explosive can be used for the priming charge and for the explosive part 9. For the priming charge,
un explosif dont la vitesse de déflagration est supé- an explosive with a higher explosion speed
rieure à celle de l'explosif de la charge explosive higher than that of the explosive of the explosive charge
principale 4.main 4.
Sur la représentation de la fig. 2, deux charges brisantes sont posées l'une à côté de l'autre sur une surface d'appui 11. En raison d'une inégalité dans la surface 11, il y a un intervalle entre les charges In the representation of fig. 2, two breaking loads are placed next to each other on a bearing surface 11. Due to an unevenness in the surface 11, there is an interval between the charges
d'amorçage 7 des deux charges brisantes. initiation 7 of the two breaking charges.
Si on initie une des charges d'amorçage 7, sa partie explosif 9 s'amorce également, d'o il résulte If one initiates one of the priming charges 7, its explosive part 9 also initiates, whence it results
qu'il se forme à partir de la garniture 10 un projec- that it forms from the lining 10 a projection
tile 10' qui file vers la charge d'amorçage de la charge brisante voisine et initie son amorçage. Etant donné que la vitesse de déflagration des charges d'amorçage 7 est supérieure à celle des charges explosives principales 4, l'amorçage des charges explosives principales s'effectue à partir de la charge d'amorçage correspondante avant que soit amorcée la charge explosive principale de la tile 10 'which spins towards the priming charge of the neighboring breaking charge and initiates its priming. Since the explosion speed of the ignition charges 7 is higher than that of the main explosive charges 4, the ignition of the main explosive charges takes place from the corresponding ignition charge before the main explosive charge is initiated of the
charge explosive principale voisine. neighboring main explosive charge.
Claims (5)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3416467A DE3416467C2 (en) | 1984-05-04 | 1984-05-04 | Cutting charge |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2563902A1 true FR2563902A1 (en) | 1985-11-08 |
FR2563902B1 FR2563902B1 (en) | 1987-10-16 |
Family
ID=6234929
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8506657A Expired FR2563902B1 (en) | 1984-05-04 | 1985-05-02 | BREAKING LOAD |
Country Status (5)
Country | Link |
---|---|
US (1) | US4632036A (en) |
DE (1) | DE3416467C2 (en) |
FR (1) | FR2563902B1 (en) |
GB (1) | GB2158565B (en) |
NL (1) | NL191494C (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5223666A (en) * | 1992-06-04 | 1993-06-29 | The United States Of America As Represented By The Secretary Of The Navy | Apparatus for clearing mines |
US6622630B2 (en) * | 1999-04-16 | 2003-09-23 | Schlumberger Technology Corporation | Booster |
DE19954657A1 (en) * | 1999-11-13 | 2001-05-17 | Diehl Munitionssysteme Gmbh | Cutting charge |
FR2794523B1 (en) * | 2000-04-11 | 2003-04-04 | Schlumberger Services Petrol | EXPLOSIVE RELAY |
US8056478B2 (en) | 2008-04-25 | 2011-11-15 | Raytheon Company | Methods and apparatus for high-impulse fuze booster for insensitive munitions |
US9335132B1 (en) | 2013-02-15 | 2016-05-10 | Innovative Defense, Llc | Swept hemispherical profile axisymmetric circular linear shaped charge |
US20150040789A1 (en) * | 2013-08-12 | 2015-02-12 | Goodrich Corporation | Enhanced linear shaped charge including spinal charge element |
US9612095B2 (en) * | 2014-12-12 | 2017-04-04 | Schlumberger Technology Corporation | Composite shaped charges |
US9360222B1 (en) | 2015-05-28 | 2016-06-07 | Innovative Defense, Llc | Axilinear shaped charge |
US10364387B2 (en) | 2016-07-29 | 2019-07-30 | Innovative Defense, Llc | Subterranean formation shock fracturing charge delivery system |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE904389C (en) * | 1951-02-06 | 1954-02-18 | Ind Sprengstoff Werke Neumarkt | Process to increase the detonation transmission capability of explosive devices or explosive cartridges |
US2837996A (en) * | 1954-05-04 | 1958-06-10 | Seismograph Service Corp | Explosive charge |
US3477372A (en) * | 1967-12-11 | 1969-11-11 | William D Mcferrin | Directional charge explosive device |
FR2067874A5 (en) * | 1969-11-19 | 1971-08-20 | Europ Propulsion | Detonating fuse for cutting under water |
FR2130888A5 (en) * | 1971-03-25 | 1972-11-10 | France Etat | |
DE2515413A1 (en) * | 1975-04-09 | 1976-10-21 | Messerschmitt Boelkow Blohm | Cutting explosive charges for joining into chains - have links and channels for detonating fuse cord |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2856850A (en) * | 1954-03-22 | 1958-10-21 | Joseph H Church | Shaped charge |
DE1062148B (en) * | 1957-03-12 | 1959-07-23 | Diehl G M B H | Method and device for firing a projectile propellant charge |
DE1090559B (en) * | 1959-07-17 | 1960-10-06 | Wasagchemie Ag | Connectable cutting charge |
US3435763A (en) * | 1967-06-20 | 1969-04-01 | Arthur A Lavine | Explosive arrangement for generating a mach stem to affect a line cut |
US3561703A (en) * | 1969-07-07 | 1971-02-09 | Stencel Aero Eng Corp | Canopy breaking by shaped charge |
US4004515A (en) * | 1971-01-25 | 1977-01-25 | The United States Of America As Represented By The Secretary Of The Navy | Sequential jet shaped charge |
DE2723983C2 (en) * | 1977-05-27 | 1984-09-27 | Rheinmetall GmbH, 4000 Düsseldorf | Propellant charge lighter for caseless cartridges of separately loaded ammunition |
GB2018402B (en) * | 1978-02-04 | 1982-06-23 | Festivate Ltd | Cutting materials |
US4191265A (en) * | 1978-06-14 | 1980-03-04 | Schlumberger Technology Corporation | Well bore perforating apparatus |
US4408535A (en) * | 1980-06-28 | 1983-10-11 | Alflex Limited | Explosive cutting means |
DE3116930C2 (en) * | 1981-04-29 | 1986-05-15 | Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn | Device for initiating an explosive charge |
DE8118005U1 (en) * | 1981-06-20 | 1981-11-19 | Große-Benne, Wilhelm | HOUSING FOR CUTTING LOADS |
US4441427A (en) * | 1982-03-01 | 1984-04-10 | Ici Americas Inc. | Liquid desensitized, electrically activated detonator assembly resistant to actuation by radio-frequency and electrostatic energies |
-
1984
- 1984-05-04 DE DE3416467A patent/DE3416467C2/en not_active Expired
-
1985
- 1985-04-16 US US06/723,734 patent/US4632036A/en not_active Expired - Fee Related
- 1985-04-17 NL NL8501119A patent/NL191494C/en not_active IP Right Cessation
- 1985-04-23 GB GB08510325A patent/GB2158565B/en not_active Expired
- 1985-05-02 FR FR8506657A patent/FR2563902B1/en not_active Expired
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE904389C (en) * | 1951-02-06 | 1954-02-18 | Ind Sprengstoff Werke Neumarkt | Process to increase the detonation transmission capability of explosive devices or explosive cartridges |
US2837996A (en) * | 1954-05-04 | 1958-06-10 | Seismograph Service Corp | Explosive charge |
US3477372A (en) * | 1967-12-11 | 1969-11-11 | William D Mcferrin | Directional charge explosive device |
FR2067874A5 (en) * | 1969-11-19 | 1971-08-20 | Europ Propulsion | Detonating fuse for cutting under water |
FR2130888A5 (en) * | 1971-03-25 | 1972-11-10 | France Etat | |
DE2515413A1 (en) * | 1975-04-09 | 1976-10-21 | Messerschmitt Boelkow Blohm | Cutting explosive charges for joining into chains - have links and channels for detonating fuse cord |
Also Published As
Publication number | Publication date |
---|---|
DE3416467C2 (en) | 1986-07-03 |
US4632036A (en) | 1986-12-30 |
NL191494B (en) | 1995-04-03 |
NL8501119A (en) | 1985-12-02 |
GB2158565B (en) | 1988-03-23 |
NL191494C (en) | 1995-08-04 |
GB8510325D0 (en) | 1985-05-30 |
DE3416467A1 (en) | 1985-11-14 |
FR2563902B1 (en) | 1987-10-16 |
GB2158565A (en) | 1985-11-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse | ||
ST | Notification of lapse |